On Wall Street, Apple’s shares fell over 5 percent in after-market trading on the news.

And it wasn’t just the iPhone. Sales of the iPad down 18 percent and Mac computers down 9 percent.

The sales declines were recorded worldwide. The biggest, a 26 percent drop in China, which has seen massive growth in recent quarters.

To be sure, Apple is still a very successful company and the iPhone remains the top smartphone in a very competitive market. But with growth slowing, Tim Cook’s team is facing something they haven’t seen in years.